Hey John,
Warrants are issued by the company along with their respective terms. I don't know of a site that lists all public companies' warrants and details, but if there is one I'd like to know about it!
The warrants for TPCO/Monogram/Caliva/Whatever they want to go by, ticker GRMWF, are good for 5 years from the qualifying transaction date (1/15/21) and give you the right to buy a share at $11.50. The holder of the warrants can trade them anytime, or exercise any time within the 5-year period but must wait 45 or 60 days(I forget which # of days, it is specified somewhere... I think I found it in the final prospectus) from the date of the qualifying transaction. The company, TPCO, has the right to exercise these warrants on your behalf at any time the share price is $18 or higher, in order to generate more capital for growth & acquisitions...
Hope this helps!
-Carmine
